Heathkit AA-100 Stereo Amplifier 25 watts per channel 50 watts mono Hi-Fi rated watts (30 watts per channel) .7% harmonic distortion at 1khz Hi-Fi rated watts (60 watts mono) .7% harmonic distortion at 1khz Input sensitivity for 25 watts output per channel Mono PHONO (left channel only) ..... 1.5mv Stereo PHONO ..... 1.5mv Tape Head ..... 1.0mv Tuner ..... 0.2v Aux 1 ..... 0.2v Aux 2 ..... 0.2v Input Impedances PHONO ..... 47K TAPE HEAD ..... 470K TUNER, AUX ..... 250K Output Impedances 4, 8, 16 ohms per channel Tape Recorder Output Approximately 0.5v max at source resistance of approx 600 ohms from cathode follower. Minimum reccomended load resistance 150K ohms. Frequency Response 30 to 15,000 cps +-1db at 25 watts Channel Separation 42db minimum at 1000 cps Damping Factoe 15 Harmonic Distortion Less than 0.5% at 25 watts, 1000 cps. Less than 2% at 25 watts, 30 to 15,000 cps Intermodulation Distortion Less than 1% at 25 watts, 60 and 6000 cps mixed 4:1 Hum and Noise PHONO (with PHONO LEVEL control adjusted for sensitivity of 6.0mv at 1000 cps ..... 55db Tape Head ..... 35db TUNER, AUX ..... 70db Equalization PHONO ..... RIAA curve Tape Head ..... NARTB curve Tone Controls Bass ..... 15db boost and 17db cut at 30 cps Treble ..... 12db boost and 20db cut at 15000 cps Power Requirements 105-125 volts, 50-60 cycles AC 150 watts at 117 VAC Tubes 2 - EF-86 4 - 12AX7 2 - 7199 4 - 7591 1 - GZ-34 Dimensions 15.25" w - 5" h - 13.5 d Weight 28.75 lbs 5 stereo inputs Versatile controls Mixed-channel speaker output Separate monophonic phono input